Quantitative analysis of angular momentum generation in the triple loop in figure skating

Area of Science:

• Biomechanics
• Sports Science
• Figure Skating Analysis

Background:

• Whole-body angular momentum (AM) is crucial for figure skating jumps and stability.
• The specific mechanisms of AM generation during the triple loop (T-LP) jump are not well understood.

Purpose of the Study:

• To analyze the segmental contributions to angular momentum generation during the T-LP in female figure skaters.
• To identify key phases and body segments involved in AM generation for T-LP.

Main Methods:

• Three-dimensional motion analysis was used to capture the movements of ten female skaters performing the T-LP.
• Segmental contributions to AM were calculated during different phases of the jump.

Main Results:

• AM increased initially due to upper limb contribution during the glide phase.
• Lower limbs, particularly the non-supporting leg, significantly contributed to AM during the transition phase.
• A slight AM reduction occurred during the pivot phase before takeoff.
• No significant correlation was found between takeoff AM and jump performance metrics (height, rotation, flight time).

Conclusions:

• Triple loop jumps on ice utilize a distinct AM generation strategy compared to off-ice jumps, involving significant lower limb contributions.
• Optimal T-LP performance depends on integrating takeoff mechanics and aerial control, not solely on takeoff AM.
• Findings can inform refined training strategies and biomechanical optimization for figure skaters.